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jekas [21]
3 years ago
15

Question 1 (5 points)

Physics
1 answer:
Elza [17]3 years ago
7 0

Answer:

Velocity

Explanation:

Velocity is a speed with a direction.

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An astronaut in an inertial reference frame measures a time interval Δt between her heartbeats. What will observers in all other
Reika [66]

Answer:

It will be more than deta t

Explanation:

Because

deta t' = န deta t

But န= 1/√ (1 - v²/c²

So the observers in all the initial frames will be more than deta t

3 0
4 years ago
When you and a friend move a couch to another room, you exert a force of 75 N over 5 m. How much work did you do?
bagirrra123 [75]

Answer:375J

Explanation:

Force=75N

Distance=5m

Work=force x distance

Work=75 x 5

Work=375J

5 0
3 years ago
Todo sistema heterogêneo é bifásico
strojnjashka [21]
I don't understand the language.....
3 0
3 years ago
An unusual lightning strike has a vertical portion with a current of −400 A downwards. The Earth's magnetic field at that locati
Xelga [282]

Answer:

0.3 N

Explanation:

i = 400 A

B = 30 x 10^-6 T

L = 25 m

Force due the current carrying conductor placed in a magnetic field

F = B i L SinФ

where, Ф be the angle between length vector and magnetic field vector

F = 30 x 10^-6 x 400 x 25 = 0.3 N

4 0
4 years ago
Evaluate the time constant of the circuit: τ = RC = (7.1 105 Ω)(4.00 µF) = 1 s Evaluate the maximum charge on the capacitor: Q =
trasher [3.6K]

Answer:

maximum current is 1.68 A

Explanation:

Maximum current is given as:

I_{max}=\frac{\epsilon}{R}

ε = 12 V

R=7.1105Ω

I_{max}=\frac{12}{7.1105}\\\\I_{max}=1.68 A

4 0
3 years ago
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